In the midst of a long-standing war between two powerful nations, a prince defies the chaos by professing his love for Juana del Moral. Promising to end the conflict within a year through marriage, he unknowingly sparks a deadly assault on Juana's life by the enemy. In a desperate bid to fulfill the prince's wish, the San Maltilia Airforce enlists the help of a biracial mercenary pilot, Charles, to clandestinely transport Juana to the Levamme capital. As they brave treacherous seas and enemy territories, the mission takes a perilous turn that challenges their resolve and puts their lives on the line.